Block all outgoing mail to certain IP

[Ilia]

I just wanted to double check, if I set up correctly in csf.deny, blocking of all outgoing mail to particular IP. I did it like this:

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tcp|out|d=25|d=1.2.3.4 # Description (do not delete)

Not sure if it should be as the way above or

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tcp|out|s=25|d=1.2.3.4 # Description (do not delete)

[Ilia]

I tested it more and can confirm that the following is valid:

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tcp|out|d=25|d=1.2.3.4 # Description (do not delete)